1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
LenKa [72]
3 years ago
10

A circle with radius 3 has a sector with a central angle of 1/9 pi radians

Mathematics
1 answer:
marissa [1.9K]3 years ago
8 0

Complete question:

A circle with radius 3 has a sector with a central angle of 1/9 pi radians

what is the area of the sector?

Answer:

The area of the sector = \frac{\pi}{2} square units

Step-by-step explanation:

To find the area of the sector of a circle, let's use the formula:

A = \frac{1}{2} r^2 \theta

Where, A = area

r = radius = 3

\theta = \frac{1}{9}\pi

Substituting values in the formula, we have:

A = \frac{1}{2}*3^2* \frac{1}{9}\pi

A = \frac{1}{2}*9* \frac{1}{9}\pi

A = 4.5 * \frac{1}{9}\pi

A = \frac{\pi}{2}

The area of the sector = \frac{\pi}{2} square units

You might be interested in
There are 48 grapes in a bag. Four friends are sharing the grapes.
xeze [42]

48 divided by 4

Step-by-step explanation:each freind gets 12 grapes

5 0
3 years ago
If the same side interior angles formed by two lines and a transversal are congruent, are the lines parallel?
melamori03 [73]
Yes they are parallel
3 0
2 years ago
Solve for x<br> A)9<br> B)33<br> C)45<br> D)62
sattari [20]

Answer:

A) 9

Step-by-step explanation:

R=7x+17

S=4x-6

Q=180-110=70

  • 4x-6+7x+17+70=180
  • 11x+81=190
  • 11x=180-81
  • 11x=99
  • x=99/11
  • x=9
3 0
3 years ago
Which of the followingis multiplicative of -a? (-1/a a 1 1/a)​
Elodia [21]

Given:

The given value is -a.

To find:

The multiplicative inverse of -a.

Solution:

We know that y is the multiplicative interval of x if xy=1.

Let x be the multiplicative inverse of the given value -a. Then,

(-a)\times x=1

Divide both sides by -a.

x=\dfrac{1}{-a}

x=-\dfrac{1}{a}

Therefore, the multiplicative inverse of -a is -\dfrac{1}{a}. Hence the correct option is A.

4 0
3 years ago
An experiment was conducted to investigate whether there is a difference in mean bag strengths for two different brands of paper
Elanso [62]

Answer:

A two-sample t-test for a difference between sample means

Step-by-step explanation:

<u>Explanation</u>:-

A random sample of 50 bags from each of Brand X and Brand Y was selected

Given two sample sizes n₁ and n₂

Each bag was held from its rim, and one-ounce weights were dropped into the bag one at a time from the same height until the bag ripped

mean of ounces the first sample = x⁻

mean of the  second sample =y⁻

Given data one-ounce weights were dropped into the bag one at a time from the same height until the bag ripped

Standard deviation of the first sample = S₁

Standard deviation of the second sample = S₂

Now we use t - distribution for a difference between the means

t = \frac{x^{-}  -y^{-} }{\sqrt{S^{2}(\frac{1}{n_{1} }  +\frac{1}{n_{2} } } }

where

S^{2} = \frac{n_{1} S_{1} ^{2} +n_{2}S_{2} ^{2}  }{n_{1} +n_{2} -2 }

Degrees of freedom γ = n₁ +n₂ -2

3 0
3 years ago
Other questions:
  • Can anybody help me plz
    10·1 answer
  • It takes the high-speed train x hours to travel the z miles from Town A to Town B at a constant rate, while it takes the regular
    12·1 answer
  • An arithmetic sequence has this recursive formula:
    11·1 answer
  • The product of 16 and x is equal to 32
    13·1 answer
  • 6570 ÷ 16 <br><br><br>410<br><br><br>410 1/16<br><br><br>410 3/8<br><br><br>410 5/8
    6·2 answers
  • Can someone help me please
    15·2 answers
  • Is the system of equations is consistent, consistent and coincident, or inconsistent?
    6·2 answers
  • Evaluate the expression below when x = 9 and y = 12. <br> 4(x + 6) - 3(y + 4)
    15·1 answer
  • The CD Warehouse is having a clearance sale. A CD player that originally sells for $60 is now priced at $36. What is the percent
    15·1 answer
  • If 3^x=243^4, then what is x?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!